They say a picture can tell a thousand words, but not in this case.

What appears to be a very defiant young lady flipping Santa 'the bird' has a very innocent explanation. As Mom told the Huffington Post:

She's actually just showing [you] her boo boo. She showed it to Santa, then we asked to see it and she turned around and did this.

That's too bad.  I thought a kid was finally taking a stand for not getting what they wanted for Christmas!